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प्रश्न
Indicate the principle behind the method used for the refining of zinc.
उत्तर
Zinc is refined using electrolytic refining process. In this process, pure zinc is transported to cathode from the impure sample at anode. The more basic metal remains in the electrolytic solution and the less basic metals, present as impurities, precipitate as anode mud.
| Electrode | Chemical Reaction |
| Anode | Zn → Zn2+ + 2e- (From anode) |
| Cathode | Zn2+ + 2e- → Zn (From electrolyte) |
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संबंधित प्रश्न
Write the names and chemical formulae of any one ore of iron.
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(b)Hall process
(c)Baeyer process
(d)Serperck process
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Passivation
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Complete the following statement by selecting the correct alternative from the choices given:
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Metal which is found in free state is:
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(i) \[\ce{CaCo3 -> CaO + CO2}\]
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(iii) \[\ce{Al2O3. {x}H2O -> Al2O3 + {x}H2O}\]
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